package mwa.cs.ar.ctrl;

import java.io.IOException;
import java.io.PrintWriter;
import java.math.BigDecimal;
import java.util.List;
import java.util.Map;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import mwa.cs.dao.ZoneDAO;
import mwa.cs.database.Database;

import org.json.simple.JSONArray;
import org.json.simple.JSONObject;

/**
 * Servlet implementation class CS43003Srvl
 */
public class CS43003Srvl extends HttpServlet {
	private static final long serialVersionUID = 1L;
	private int vnSiteId;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public CS43003Srvl() {
        super();
        // TODO Auto-generated constructor stub
    }

    public void processRequest(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException {
    	String vaProcessType = request.getParameter("process_type");
		vnSiteId = Integer.parseInt(request.getSession().getAttribute("site_id").toString());
    	if (vaProcessType.equals("getZone")) {
    		getZone(request,response);
    	}
    }
    
    @SuppressWarnings("unchecked")
    public void getZone(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException {
    	request.setCharacterEncoding("UTF-8");
		response.setCharacterEncoding("UTF-8"); 
		response.setContentType("text/JSON");
		String[] vaMessage = null, vaValue = null;
		Database db = new Database();
    	
    	ZoneDAO voZoneDAO = new ZoneDAO(db);
		List<Map<String, Object>> voResult = voZoneDAO.findZoneBySite(vnSiteId);
		vaValue = new String[voResult.size()];
		vaMessage = new String[voResult.size()];
		for (int i = 0; i < voResult.size(); i++) {
			Map<String, Object> voObject = voResult.get(i);	
			vaValue[i] = ((BigDecimal) voObject.get("ZONE_ID")).toString();
			vaMessage[i] = (String) voObject.get("ZONE_NAME");
		}
		JSONObject voObject = new JSONObject();
		JSONArray voList = new JSONArray();
		PrintWriter voOut = response.getWriter();
		if (vaMessage != null) {
			for (int i = 0; i < vaMessage.length; i ++) {
				voList.add(vaMessage[i]);
			}
		}
		voObject.put("messages", voList);
		JSONArray voList2 = new JSONArray();
		if (vaValue != null) {
			for (int i = 0; i < vaValue.length; i ++) {
				voList2.add(vaValue[i]);
			}
		}
		voObject.put("values", voList2);
		db.close();
		voOut.print(voObject.toJSONString());
    }
    
	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		processRequest(request, response);
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		processRequest(request, response);
	}

}
